CVE-2018-10856: Github.com/containers/podman Podman Elevated Container Privileges Vulnerability

HIGH
Advisory Identifier: GHSA-wp7w-vx86-vj9h
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CVSS 8.8
CWE-732
Published
Advisory Summary

CVE-2018-10856 is a HIGH (CVSS 8.8) podman elevated container privileges vulnerability (CWE-732: Incorrect Permission Assignment for Critical Resource) affecting Github.com/containers/podman libraries in the Go ecosystem. The issue involves podman elevated container privileges. Remediation is available by upgrading affected packages to version 0.6.1.

CVE-2018-10856 at a Glance

CVE Identifier CVE-2018-10856
GHSA Identifier GHSA-wp7w-vx86-vj9h
Severity HIGH
CVSS v3.1 Base Score 8.8
CWE Classification CWE-732: Incorrect Permission Assignment for Critical Resource
Affected Product Github.com/containers/podman
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 8.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2018-10856

To remediate this vulnerability, upgrade all affected Github.com/containers/podman dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

github.com/containers/podman fixed: 0.6.1 
Upgrade github.com/containers/podman to 0.6.1
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for github.com/containers/podman

How to Check if You Are Affected

To determine whether your application is affected by CVE-2018-10856, inspect your project dependencies for Github.com/containers/podman:

inspect dependencies for github.com/containers/podman

Analyze the terminal output to locate any version of Github.com/containers/podman in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.6.1), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-732: Incorrect Permission Assignment for Critical Resource, where the product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors. In Github.com/containers/podman, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

It has been discovered that podman before version 0.6.1 does not drop capabilities when executing a container as a non-root user. This results in unnecessary privileges being granted to the container.

CVE-2018-10856 Affected Github.com/containers/podman Versions

1 component(s)
Fixed Versions:
0.6.1
Product / Package Ecosystem Affected Versions Fixed Version
github.com/containers/podman
golang/github.com/containers/podman
Go
< 0.6.1
0.6.1

References

NVD — CVE-2018-10856 NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-10856
Security Fix Commit FIX COMMIT
https://github.com/projectatomic/libpod/commit/bae80a0b663925ec751ad2784ca32989403cdc24
access.redhat.com/errata/rhsa-2018:20... WEB
https://access.redhat.com/errata/RHSA-2018:2037
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10856
Github.com/containers/podman Source Repository REPOSITORY
https://github.com/containers/podman

Frequently Asked Questions

What is CVE-2018-10856?
CVE-2018-10856 is a security vulnerability in Github.com/containers/podman involving Podman Elevated Container Privileges under CWE-732: Incorrect Permission Assignment for Critical Resource.
Which Github.com/containers/podman versions are affected?
Affected versions include releases prior to 0.6.1 across affected packages: github.com/containers/podman.
What version fixes CVE-2018-10856?
Upgrading to 0.6.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/containers/podman affected?
Yes, github.com/containers/podman is affected in releases prior to 0.6.1. Upgrade your dependency to 0.6.1 or later.
What is the CVSS score of CVE-2018-10856?
CVE-2018-10856 has a CVSS v3.1 base score of 8.8 (HIGH) with vector string CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2018-10856?
CVE-2018-10856 is classified under CWE-732: Incorrect Permission Assignment for Critical Resource (The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.).
How can I check Go dependencies for CVE-2018-10856?
Run the dependency tree command: 'inspect dependencies for github.com/containers/podman'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-wp7w-vx86-vj9h",
  "modified" : "2024-09-16T15:00:24Z",
  "published" : "2022-05-13T01:34:58Z",
  "aliases" : [ "CVE-2018-10856" ],
  "summary" : "Podman Elevated Container Privileges",
  "details" : "It has been discovered that podman before version 0.6.1 does not drop capabilities when executing a container as a non-root user. This results in unnecessary privileges being granted to the container.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/containers/podman"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.6.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-10856"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/projectatomic/libpod/commit/bae80a0b663925ec751ad2784ca32989403cdc24"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2018:2037"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10856"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/containers/podman"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-732" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-07-21T21:42:33Z",
    "nvd_published_at" : "2018-07-03T01:29:00Z"
  }
}